![Will on Twitter: "Evolutionary psychologists still seem to be largely on board with the nonsensical 'Semen Displacement Hypothesis', though primatologist Alan Dixson gave a pretty thorough takedown of it over a decade Will on Twitter: "Evolutionary psychologists still seem to be largely on board with the nonsensical 'Semen Displacement Hypothesis', though primatologist Alan Dixson gave a pretty thorough takedown of it over a decade](https://pbs.twimg.com/media/D4LY4S2UEAMumgd.png)
Will on Twitter: "Evolutionary psychologists still seem to be largely on board with the nonsensical 'Semen Displacement Hypothesis', though primatologist Alan Dixson gave a pretty thorough takedown of it over a decade
![PDF) Mate retention, semen displacement, and sperm competition in humans | Aaron Goetz - Academia.edu PDF) Mate retention, semen displacement, and sperm competition in humans | Aaron Goetz - Academia.edu](https://0.academia-photos.com/attachment_thumbnails/31521481/mini_magick20190426-32180-1w17sgk.png?1556271678)
PDF) Mate retention, semen displacement, and sperm competition in humans | Aaron Goetz - Academia.edu
![Scientists just realised something fascinating but gross about why the penis is shaped the way it is Scientists just realised something fascinating but gross about why the penis is shaped the way it is](https://www.thesun.co.uk/wp-content/uploads/2016/06/nintchdbpict000244810081.jpg)
Scientists just realised something fascinating but gross about why the penis is shaped the way it is
![Semen Displacement as a Sperm Competition Strategy in Humans – topic of research paper in History and archaeology. Download scholarly article PDF and read for free on CyberLeninka open science hub. Semen Displacement as a Sperm Competition Strategy in Humans – topic of research paper in History and archaeology. Download scholarly article PDF and read for free on CyberLeninka open science hub.](https://cyberleninka.org/viewer_images/1385192/f/1.png)